I say it depends. For 7 to 10" tablets, the author may well be correct. I have a 5" Dell Streak which I almost always use in landscape, especially when readin

I say it depends. For 7 to 10" tablets, the author may well be correct. I have a 5" Dell Streak which I almost always use in landscape, especially when reading PDFs as the display is sufficiently wide that I don't have to scroll horizontally.